With the Sidi Nix cycling boot, experience the perfect blend of eco-friendly weather resistance and unmatched stability with the new Gore-Tex EPE Membrane. Enjoy all the control without the extra weight thanks to anatomical heel construction and Firmor lateral support technology. The Millennium Fit, combined with a wrapping strap and high-density dialing system, ensures incredible stability and comfort for every wearer. The R2CC sole, with engineered inserts and reinforced toe and heel areas, guarantees durability and peak performance in the toughest conditions. Gore-Tex EPE Membrane with anatomical heel construction Millennium fit with wrapping strap and high-density dialing system R2CC sole with stiffness index and sole inserts engineered for durability Firmor lateral support technology with reinforcements on toes and heel Specifications Cleat Bolt Pattern3-BoltClosureDialShoe Size (EU)40Gender/AgeMen'sColorBlack/BlackDefined ColorBlack